Railway Engineering
Consider the following surveys.1. Reconnaissance survey2. Preliminary survey3. Traffic survey4. Location surveyThe correct sequence in which these surveys are conducted before the alignment of a track is finalised is

3,1,4,2
3,1,2,4
1,3,4,2
1,3,2,4

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Railway Engineering
Heel divergence is

Sometimes greater than flange-way clearance
Always less than flange-way clearance
Equal to flange-way clearance
Always greater than flange-way clearance

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